CN102788103B

CN102788103B - One-way ratchet wheel component

Info

Publication number: CN102788103B
Application number: CN201110130489.0A
Authority: CN
Inventors: 陈振坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-19
Filing date: 2011-05-19
Publication date: 2015-01-07
Anticipated expiration: 2031-05-19
Also published as: CN102788103A

Abstract

The invention provides a one-way ratchet wheel component which comprises a body provided with a driving wheel and a driven wheel connected with the driving wheel. A shifting space is arranged on one side of the body connected with the driven wheel, a latch section is arranged on an inclined slope opposite to the other side of the shifting space, the driven wheel can be driven by the driving wheel to roll towards the direction of the latch section on the inclined slope opposite to the other side of the shifting space so as to form a pulling state. When the body rotates towards a direction opposite to the driving direction, an idle state is formed. The one-way ratchet wheel component has the advantages of having good adaptability and being good in strength and torsion resistance, not prone to slip during moving and stable and reliable in structure.

Description

One-way ratchet wheel component

Technical field

The present invention relates to a kind of single direction ratchet, the single direction ratchet that the reliable applicability of espespecially a kind of structural stability is strong.

Background technique

At present, one-way drive mechanism is commonly used in the mechanism such as rotation positioning rotating shaft and unilateral bearing of spanner, flywheel, the chair back and seat support, above-mentioned existing one-way drive mechanism is generally the effect that can be reached unidirectional drive by configuration ratchet and ratchet, and existing one-way drive mechanism has been attained in perfection in actual operation, what only can improve is exactly the increase of the ratchet number of teeth, can reduce angle needed for its work, but the increase of the ratchet number of teeth also will have and easily to crumble and antitorque hypodynamic problem exists.

As shown in figure 11, be existing one-way drive mechanism on spanner, it is mainly provided with a containing groove 92 in spanner 91 one end, and a ratchet wheel block 93 is provided with in this containing groove 92, this ratchet wheel block 93 outside is equipped with several oblique recesses 94, and be formed with several transmission space 95 between this each oblique recess 94 and this containing groove 92 inwall, and a roller 96 has been inserted respectively in each transmission space 95, utilize roller 96 be can unidirectional clip in this containing groove 92 inwall side, and can reach and drive ratchet wheel block 93 and the workpiece that is nested with thereof to carry out the effect of rotating with spanner.But, the ratchet wrench of this structural design, though it makes to obtain continuous action relation between ratchet wheel block 93 and containing groove 92 inwall by this each roller 96, and reach the feature that can operate use without section drives workpiece in minimum working space, but on reality uses, because its active force is concentrated in the edge of ratchet wheel block 93, therefore there is the shortcoming of easily wearing and tearing, and in time exerting a force excessive, more have the shortcoming generation that roller 96 easily skids, and the structure of symmetric type will cause wrench body too plump, be especially unfavorable for that the thin body of plum blossom ratchet wrench makes; Moreover the degree of twisting resistance, far below existing ratchet wrench, again through special strengthening process, just must can meet twisting resistance standard, therefore will increase the difficulty on making, and cannot reduce costs.

In view of this, therefore how to solve the problem, be the present invention for solve primary problem, therefore, inventor be through constantly think hard with study after, just finally have generation of the present invention.

Summary of the invention

The object of the invention is to improve the deficiencies in the prior art, provide a kind of structural stability reliable and the one-way ratchet wheel component that applicability is strong.

For achieving the above object, the present invention is by the following technical solutions:

A kind of one-way ratchet wheel component, it includes:

One body, there is one first groove and one second groove, a driving wheel is provided with in this first groove, and this driving wheel central position is formed with the transmission unit can rotated for drive one Runner assembly, this driving wheel outer circumferential face is equipped with one first teeth portion, and this body is defined as a driving direction in order to the direction driving this driving wheel and rotate, and this second groove is in having a shift space towards the side of this driving direction, and relative slope on the opposite side relative with this shift space of this second groove is provided with a latch section be made up of several serration continuous arrangements;

One by driving wheel, be located in described second groove of described body, this is equipped with second teeth portion engaged with described first teeth portion by driving wheel outer circumferential face, and one can the stop teeth portion that engage relative to the latch section of this second groove, and this can be rolled towards the latch section direction on the relative slope on the opposite side relative with this shift space by this driving wheel drives by driving wheel, and stop that teeth portion is relatively engaged in this latch section and forms clip state with it, and when this body this driving direction towards the opposite rotates, namely this can be rolled by the stop teeth portion of driving wheel and be away from latch section on relative slope and form idling conditions.

Described body is made up of two relative side plates, and the body end face formed in this two side plate offers the first groove and the second groove that are not connected respectively.

Described be located on respectively by the second teeth portion of driving wheel and described blocking teeth portion described by the different heights position of driving wheel outer circumferential face.

More distinguish in described second groove and have one first interval and one second interval, and correspond to the side of this second groove in described body and be provided with one and be communicated to elastic propping piece in this second groove, and this can be carried out a switching action by driving wheel in this first interval and the second interval, and can be limited this by the butted of this elastic propping piece be located in wherein in an interval by driving wheel, and be formed with a latch section respectively in this two interval, and the latch section in this two interval is in oppositely arranging.

Described driving wheel and be describedly more equipped with a changeover module by driving wheel outer circumferential face, and this changeover module can make this in this first interval and second interval, be carried out a switching action by driving wheel.

Described body is integral type and described first groove and described second groove are interconnected, and described stop teeth portion is located at described by the end, each tooth peak of driving wheel second teeth portion, and this second teeth portion and this blocking teeth portion are located on this respectively by the identical height and position of driving wheel outer circumferential face.

Beneficial effect of the present invention is: have good applicability, and intensity and twisting resistance are better simultaneously, thus make not easily slippage in start, and structural stability is reliable.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Fig. 2 is the perspective exploded view of first embodiment of the invention.

Fig. 3 is the schematic perspective view after the assembling of first embodiment of the invention.

Fig. 4 is the structural representation of first embodiment of the invention.

Fig. 5 is the using state schematic diagram of first embodiment of the invention, is when body is towards state during this driving direction swing in order to display.

Fig. 6 is the using state schematic diagram of first embodiment of the invention, is in order to the state of display when body this driving direction swing towards the opposite.

Fig. 7 is the structural representation of second embodiment of the invention.

Fig. 8 is the using state schematic diagram of second embodiment of the invention, is in order to the state of display when switched to the second groove by driving wheel second is interval.

Fig. 9 is the using state schematic diagram of second embodiment of the invention, be in order to display when switched to by driving wheel the second groove second interval and reverse swing body time state.

Figure 10 is the structural representation of third embodiment of the invention.

Figure 11 is the structural representation of existing stepless ratchet wrench.

Embodiment

First, referring to Fig. 1, is a kind of one-way ratchet wheel component provided by the present invention, its mainly by body 11, driving wheel 21 and form by driving wheel 31, wherein:

This body 11, be provided with in one first groove 13 and one second groove 14, and a driving wheel 21 is provided with in this first groove 13, and this driving wheel 21 central position is formed with the transmission unit 23 can rotated for drive one Runner assembly 41, and this Runner assembly 41 can be a transmission shaft or to be spirally connected workpiece, and be equipped with one first teeth portion 22 in this driving wheel 21 outer circumferential face, and this body 11 is be defined as a driving direction R in order to the direction driving this driving wheel 21 and rotate, and this second groove 14 is in being have a shift space 141 towards the side of this driving direction R, and the relative slope on the opposite side relative with this shift space 141 of this second groove 14 is provided with a latch section 142 be made up of several serration continuous arrangements.

This is by driving wheel 31, to be located in the second groove of this body 11 14, this is equipped with second teeth portion 32 engaged with this first teeth portion 22 by driving wheel 31 outer circumferential face, and one can with the relative stop teeth portion 33 engaged of this second groove 14 latch section 142, and this is can to drive by this driving wheel 11 and roll in latch section 142 direction on relative slope on the opposite side relative with this shift space 141 by driving wheel 31, and with its stop teeth portion 33 to be relatively engaged in this latch section 142 and by this driving wheel 21 drive this by driving wheel 31 roll the latch section 142 be engaged on relative slope time, by the reaction force on formation one slope (wedge), and really can stop that this driving wheel 21 rotates, finally counteract the twisting force of driving pawl, clip state can be formed.

And when this body 11 rotates towards the direction contrary with this driving direction R, namely this to be rolled the latch section 142 be away from relative slope by the stop teeth portion 33 of driving wheel 21, and and then remove and the engagement of this latch section 142, now because the reaction force on slope disappears, and this driving wheel 21 can oppositely be dallied action, and the effect of unidirectional drive can be formed by this.

Then referring to Fig. 2 to Fig. 4, is the first embodiment that the present invention is applied on spanner, its mainly by body 11, driving wheel 21 and form by driving wheel 31, wherein:

This body 11, is made up of two relative side plates 12 in the present embodiment, and body 11 end face formed in this two side plate 12 offers one first groove 13 and one second groove 14 respectively, and this first groove 13 is not connected with the second groove 14.And this driving wheel 21 is relatively located in this first groove 13 by this two side plate 12, and be equipped with one first teeth portion 22 in this driving wheel 21 outer circumferential face, this driving wheel 21 central position is then formed with a transmission unit 23 can rotated for drive one Runner assembly 41, in the present embodiment, this Runner assembly 41 is for one is spirally connected workpiece, and this body 11 is in order to drive the direction of the workpiece rotation that is spirally connected to be defined as a driving direction R, this second groove 14 is in being have a shift space 141 towards the side of this driving direction R, and be provided with a latch section 142 be made up of several serration continuous arrangements in the relative slope that this second groove 14 is positioned at this shift space 141 opposite side, the serration that this latch section 142 can be 60 tooth to one hundred teeth by the number of teeth is formed, and in the present embodiment, this latch section 142 is made up of the serration of 90 teeth.

This is by driving wheel 31, be located in the second groove 14 of this two side plate 12, and be equipped with one second teeth portion 32 and a stop teeth portion 33 in this by driving wheel 31 outer circumferential face, and this second teeth portion 32 is be located on this respectively by the different heights position of driving wheel 31 outer circumferential face with this stop teeth portion 33, wherein, this second teeth portion 32 is by engage each other with the first teeth portion 22 of this driving wheel 21 between this two side plate 12 and can interlock each other, and this stop teeth portion 33 is formed with the serration of 90 teeth equally in the present embodiment, and this body 11 is in time rotating towards this driving direction R, this can be driven by this driving wheel 21 by driving wheel 31 and roll towards latch section 142 direction on this relative slope of shift space 141 opposite side, and stop that teeth portion 33 is engaged in this latch section 142 relatively with it, and formation can stop the resistance that this driving wheel 21 rotates, and be more greater than this by driving wheel 31 by driving wheel 21 diameter, and when making this driving wheel 21 drive this to be operated by driving wheel 31, this must be made to be simulated the action of the many times of numbers of teeth by the stop teeth portion 33 of driving wheel 31.

Then please continue to refer to Fig. 5, the present invention consisted of above-mentioned component is when reality uses, be spirally connected on workpiece 41 when user is engaged in one with the transmission unit 23 of this driving wheel 21, and when this body 11 being exerted a force and makes this body 11 towards the R swing of this driving direction, namely this driving wheel 21 can drive this to be rolled towards latch section 142 direction on this relative slope of shift space 141 opposite side by driving wheel 31, and stop that teeth portion 33 is engaged in this latch section 142 relatively with it, and when driving this to be engaged on the latch section 142 on relative slope by driving wheel 31 rolling by this driving wheel 21, by the reaction force on formation one slope, and really can stop that this driving wheel 21 rotates, finally counteract the twisting force of driving pawl, clip state can be formed by this, and during in this body 11 towards the R swing of this driving direction, synchronously can drive the operation that the workpiece 41 that is spirally connected being engaged in this driving wheel 21 transmission unit 23 carries out locking or unscrewing.

Moreover, when user changes its force direction, and when making the body 11 of spanner towards the direction swing contrary with this driving direction R, as shown in Figure 6, when this body 11 is towards the direction swing contrary with this driving direction R, namely this to be rolled the latch section 142 that is away from relative slope be partial to this shift space 141 by the stop teeth portion 33 of driving wheel 31, and then the engagement with this second groove 14 latch section 142 can be removed, now because the reaction force on slope disappears, this body 11 can not drive when reverse swing this be spirally connected workpiece 41 and relatively this driving wheel 21 carry out an idle running action, and the effect that the present invention has unidirectional drive can be formed by this.

What so must propose explanation especially in this is, the present invention is under comparing with existing ratchet wrench, owing to being the effect utilizing slope effect and unidirectional drive can be reached, therefore no longer need additionally to shore with elastic component effect that brake block can be formed unidirectional drive, therefore not only more existing ratchet wrench is more simple for structure composition, also more easy in assembling, and by by the stop teeth portion 33 of driving wheel 31 be can rotate in this body 11 towards this driving direction R time the second groove 14 latch section 142 is relative engages with this, therefore when the power that user executes towards this driving direction R is larger, this latch section 142 also will be larger with mutual the produced slope reaction force of this stop teeth portion 33, and make the present invention, in use, sliding phenomenon can occur more really and not easily, even if therefore latch section of the present invention 142 and this stop teeth portion 33 are formed with 60 the teeth even serration of 100 teeth, also do not need to worry that it has intensity or antitorque hypodynamic situation, and be to drive this to be simulated the action of the many times of numbers of teeth by driving wheel 31 by this driving wheel 21, therefore more angle needed for work can be reduced, and the spanner making the present invention form more can reach the effect close to driving without section, and be applicable to narrow working space.

Separately as shown in Figure 7, it is the second embodiment be applied to for the present invention on spanner, and the difference of itself and above-mentioned first embodiment is, more distinguish in this second groove 14 and have one first interval 14a and one second interval 14b, and be provided with one in the side that this body 11 corresponds to this second groove 14 and can be communicated to elastic propping piece 15 in this second groove, and in this driving wheel 21 be equipped with a changeover module 42 by driving wheel 31 outer circumferential face, can carry out a switching action in this first interval 14a and the second interval 14b to make this by driving wheel 31, and can be limited this by driving wheel 31 on this changeover module 42 side be located in a wherein interval 14a by this elastic propping piece 15 is butted, in 14b, and in this two interval 14a, one is formed respectively in the latch section 142a oppositely arranged in 14b, 142b.

By this, when the direction that user drives workpiece 41 to rotate for change spanner, as shown in Figure 8, user only needs press this changeover module 42 and make this be located in the second interval 14b of this second groove 14 by driving wheel 31, now, in oppositely arranging with the latch section 142a in this first interval 14a by the latch section 142b of this second interval 14b, therefore when reverse this body 11 of swing of user, will as shown in Figure 9, namely this can be driven by this driving wheel 21 by driving wheel 31 and roll in latch section 142b direction towards this second interval 14b, and stop that teeth portion 33 is engaged on the latch section 142b on relative slope with it, and then stop that this driving wheel 21 rotates, and in this state, if forward this body 11 of swing again, this can be made to be rolled the latch section 142b that is away from relative slope be partial to this shift space 141 by the stop teeth portion 33 of driving wheel 31, and then the engagement with this second interval 14b latch section 142b can be removed, now because the reaction force on slope disappears, make this body 11 can carry out idle running action by this driving wheel 21 relative smoothly equally, and the second embodiment of the invention consisted of said structure is by switching this by driving wheel 31 relative to this two interval 14a, the position of 14b, effect of spanner driving direction is changed to provide two-way switching.

Then please continue to refer to Figure 10, it is the 3rd embodiment be applied to for the present invention on another spanner, and the difference of itself and above-mentioned first embodiment is, this body 11 is integral type and offers one first groove 13 and one second groove 14, and this first groove 13 is interconnected with this second groove 14, wherein, this driving wheel 21 outer circumferential face is equipped with one first teeth portion, and this driving wheel 21 is located in this first groove 13, this is then equipped with one by driving wheel 31 outer circumferential face can second teeth portion 32 intermeshing with this first teeth portion 22, and be respectively equipped with several stop teeth portion 33 be made up of serration in each tooth peak face place of this second teeth portion 32, and this second teeth portion 32 and this stop teeth portion 33 are located on this respectively by the identical height and position of driving wheel 31 outer circumferential face.

And by third embodiment of the invention that above-mentioned component forms, when this body 11 is when rotating towards this driving direction R, this can be driven by this driving wheel 21 equally by driving wheel 31 and roll towards latch section 142 direction on this relative slope of the second groove 14 shift space 141 opposite side, and stop that teeth portion 33 is engaged in this latch section 142 relatively with it, and form and can stop the resistance that this driving wheel 21 rotates, reaching by this can effect of unidirectional drive workpiece; And it can thus be appreciated that, one-way ratchet wheel component provided by the present invention does not limit to kind, the type shape of its body 11, is therefore applicable on the market on all types of spanner.

In like manner, one-way ratchet wheel component provided by the present invention is also applicable to unilateral bearing in bicycle flywheel or the movable chair back of ratchet-type etc. and has in the mechanism of unidirectional drive, it only need engage with the pivotal axis of the transmission unit 23 of this driving wheel 21 with unilateral bearing or the movable chair back of ratchet-type, the transmission that the movable chair back of unilateral bearing or ratchet-type etc. can be made to have a unidirectional drive effect of one-way drive mechanism more really and not eely effect, and when one-way ratchet wheel component of the present invention is used to the flywheel of bicycle, except more smooth and easy when it can be made to dally, outside noiseless, more act on compared with the instant impact produced when can absorb and trample bicycle flywheel by slope, and and then there is the advantage increasing its durability.

Claims

1. an one-way ratchet wheel component, is characterized in that, it includes:

2. according to one-way ratchet wheel component according to claim 1, it is characterized in that: described body is made up of two relative side plates, and the body end face formed in this two side plate offers the first groove and the second groove that are not connected respectively.

3., according to the one-way ratchet wheel component described in claim 1 or 2, it is characterized in that: described be located on respectively by the second teeth portion of driving wheel and described blocking teeth portion described by the different heights position of driving wheel outer circumferential face.

4. according to one-way ratchet wheel component according to claim 1, it is characterized in that: more distinguish in described second groove and have one first interval and one second interval, and correspond to the side of this second groove in described body and be provided with one and be communicated to elastic propping piece in this second groove, and this can be carried out a switching action by driving wheel in this first interval and the second interval, and can be limited this by the butted of this elastic propping piece be located in wherein in an interval by driving wheel, and be formed with a latch section respectively in this two interval, and the latch section in this two interval is in oppositely arranging.

5. according to one-way ratchet wheel component according to claim 4, it is characterized in that: described driving wheel is more equipped with a changeover module with described by driving wheel outer circumferential face, and this changeover module can make this in this first interval and the second interval, be carried out a switching action by driving wheel.

6. according to one-way ratchet wheel component according to claim 1, it is characterized in that: described body is integral type and described first groove and described second groove are interconnected, and described stop teeth portion is located at described by the end, each tooth peak of driving wheel second teeth portion, and this second teeth portion and this blocking teeth portion are located on this respectively by the identical height and position of driving wheel outer circumferential face.